Studying Aliens at Home, Aliens Come Knocking on the Door

Three years ago, Wu Yong traveled through time. After activating the alien technology system, I thought that I could light up the technology tree and make great achievements in this world. Unexpectedly, I only used the system to come up with some weird inventions: Solar flashlight: only where there is sunlight can it shine Life-extending bicycle: Riding a bicycle for one hour can enhance your life for one hour Anti-drowning diving respirator: After wearing it, it can filter the air and prevent drowning. The disadvantage is that the machine is not waterproof! Until one day, he began to study aliens... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.